javascript - 单击我的自定义 div 时如何关闭移动菜单面板

Question

我想加入这两个功能，但经过多次测试仍然没有正确的结果。

这是我使用的示例代码=>

function myFunction(x) {
x.classList.toggle("change");
}
$(document).ready(function() 
{
var isMenuOpen = false;

$('.menu_btn').click(function()
{
    if (isMenuOpen == false)
    {
        $("#menu_smartphone").clearQueue().animate({
            left : '0px' 
        })            
  $("#grey_back").fadeIn('fast');
        $(".close").fadeIn(300);

        isMenuOpen = true;
    } 
});     
$('#grey_back').click(function()
{
    if (isMenuOpen == true)
    {
        $("#menu_smartphone").clearQueue().animate({
            left : '-200px'
        })
        $("#page").clearQueue().animate({
            "margin-left" : '0px'
        })            
  $("#grey_back").fadeOut('fast');
        $(this).fadeOut(200);

        isMenuOpen = false;
    }
});
});

所以我希望的是，当单击 .menu_btn 时，侧面板打开(功能正常)，但是当重新单击它时(当 isMenuOpen = true 时)，它会关闭侧面板。 使用此代码，侧面板仅在单击#grey_back时关闭

这是一个演示=> https://jsfiddle.net/vsfogccy/

Answer 1

我建议您简化代码并优化动画。 transform:translate() 比动画静态位置更流畅，如您的情况 - left 属性。

var isGreyInvisible = true;
$('.menumobile').click(function() {
  if (isGreyInvisible) {
    $('#grey_back').fadeIn();
    isGreyInvisible = false;
  } else {
    $('#grey_back').fadeOut();
    isGreyInvisible = true;
  }
  $('#menu_smartphone').toggleClass('open');
  $('.bar1').toggleClass('change1');
  $('.bar2').toggleClass('change2');
  $('.bar3').toggleClass('change3');
});

$('#grey_back').click(function() {
  $('#menu_smartphone').removeClass('open');
  $('#grey_back').fadeOut();
  isGreyInvisible = true;
  $('.bar1').removeClass('change1');
  $('.bar2').removeClass('change2');
  $('.bar3').removeClass('change3');
});

/* Menu mobile */

* {
  padding: 0;
  margin: 0;
  border: 0;
}
#menu_smartphone {
  height: 100%;
  position: absolute;
  top: 0;
  transform: translateX(-250px);
  bottom: 0;
  padding-top: 30px;
  width: 250px;
  transition: all 1s ease;
  color: webkit-box-shadow: inset 0px 7px 5px -5px rgba(0, 0, 0, 0.5);
  -moz-box-shadow: inset 0px 7px 5px -5px rgba(0, 0, 0, 0.5);
  box-shadow: inset 0px 7px 5px -5px rgba(0, 0, 0, 0.5);
  background: rgb(230, 230, 230);
  filter: progid: DXImageTransform.Microsoft.gradient(startColorstr='#e6e6e6', endColorstr='#ffffff', GradientType=0);
  background: -moz-linear-gradient(top, rgba(230, 230, 230, 1) 0%, rgba(249, 249, 249, 1) 25%);
  background: -webkit-gradient(linear, left top, left bottom, color-stop(0%, rgba(230, 230, 230, 1)), color-stop(25%, rgba(249, 249, 249, 1)));
  background: -webkit-linear-gradient(top, rgba(230, 230, 230, 1) 0%, rgba(249, 249, 249, 1) 25%);
  background: -o-linear-gradient(top, rgba(230, 230, 230, 1) 0%, rgba(249, 249, 249, 1) 25%);
  background: -ms-linear-gradient(top, rgba(230, 230, 230, 1) 0%, rgba(249, 249, 249, 1) 25%);
  background: linear-gradient(to bottom, rgba(230, 230, 230, 1) 0%, rgba(249, 249, 249, 1) 25%);
}
#menu_smartphone ul {
  padding: 0;
  margin: 0;
  list-style: none;
  color: #999999;
}
#menu_smartphone ul li {
  height: 70px;
  padding-left: 10px;
  line-height: 70px;
}
#menu_smartphone ul li:hover {
  background: #f7f7f7;
}
#menu_smartphone ul li a {
  color: #999999;
  text-decoration: none;
  font-family: 'Roboto';
  font-weight: 400;
  font-size: 25px;
}
#grey_back {
  display: none;
  background-color: #000000;
  opacity: 0.7;
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
}
.card {
  width: 100%;
  height: 100%;
  background-color: #ffffff;
  margin: 10px;
  padding: 20px;
  color: #666666;
  font-weight: 300;
  font-size: 36px;
  text-align: center;
  font-family: 'Roboto';
}
/* Menu animé en css */

.menumobile {
  display: inline-block;
  cursor: pointer;
  position: fixed;
  z-index: 100000;
  top: 10px;
  left: 10px;
  z-index: 100000;
}
.bar1,
.bar2,
.bar3 {
  width: 35px;
  height: 5px;
  background-color: #333;
  margin: 6px 0;
  transition: 0.4s;
}
/* Rotate first bar */

.change1 {
  -webkit-transform: rotate(-45deg) translate(-9px, 6px);
  transform: rotate(-45deg) translate(-9px, 6px);
}
/* Fade out the second bar */

.change2 {
  opacity: 0;
}
/* Rotate last bar */

.change3 {
  -webkit-transform: rotate(45deg) translate(-8px, -8px);
  transform: rotate(45deg) translate(-8px, -8px);
}
.open {
  transform: translateX(0) !important;
  transition: all 1s ease;
}
.visible {
  display: block;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="menumobile menu_btn">
  <div class="bar1"></div>
  <div class="bar2"></div>
  <div class="bar3"></div>
</div>
<div id="grey_back">&nbsp;</div>
<div id="menu_smartphone" class="menu_mobile_app closed" align="left">
  <ul style="overflow-y:auto;">
    <li><a href="#">MENU 1</a>
    </li>
    <li><a href="#">MENU 2</a>
    </li>
    <li><a href="#">MENU 3</a>
    </li>
    <li><a href="#">MENU 4</a>
    </li>
  </ul>
</div>
<div class="card"></div>